linux-kernel - Re: [PATCH] f2fs: fix to redirty page if fail to gc data page

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Date:	Fri, 3 Jun 2016 10:36:54 -0700
From:	Jaegeuk Kim <jaegeuk@...nel.org>
To:	Chao Yu <yuchao0@...wei.com>
Cc:	Chao Yu <chao@...nel.org>, linux-f2fs-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] f2fs: fix to redirty page if fail to gc data page

On Fri, Jun 03, 2016 at 01:59:15PM +0800, Chao Yu wrote:
...

> >>> Do we have another expectation?
> >>
> >> ENOMEM or EIO?
> > 
> > EIO will stop everything.
> > ENOMEM would be better to wait for a while from page reclaim?
> 
> Agree, but for ioctl path, IMO, we don't need to let user waiting for ENOMEM
> case looping.

Well, if user wanted to do a synchronous gc, we need that, IMO.